Ball Bearings/

Ceramic Ball Bearings

Ceramic ball bearings are rolling-element bearings made from ceramic materials that provide smooth, low-friction radial or axial motion in a spinning system. Ball bearings are composed of three main parts: an inner ring, an outer ring and the balls. The rings are also called races and are what the balls travel along. Many ceramic ball bearings also have separators that keep the balls from coming into contact with each other.

Pacific International Bearing, Inc.
Union City, CA
800-228-8895
Pacific International Bearing offers a complete line of ball bearings for a variety of applications. Clients can count on PIB to meet their special requirements. Whether they have applications that call for a thinner ball or a need for an extra light, light or medium duty ball or roller bearing, PIB can offer quality ISO 9001 certified bearings at competitive prices with JIT programs available.
Scheerer Bearing Corporation
Horsham, PA
800-443-5252
As a ball and cylindrical bearing manufacturer and repair service center, Scheerer Bearing Corp. can fill your order with inch or metric ball bearings, large-size standard bearings, radial roller bearings, radial ball bearings, precision ball bearings, and roller thrust bearings. We are also able to meet individual product specifications. In business since 1963 and we're still going strong.
National Bearing Service
Branchburg, NJ
800-342-2082
National Bearing is a leading manufacturer of ball bearings and offers unsurpassed service and expansive product lines. Our featured products include stainless steel ball bearings, miniature ball bearings and more. National Bearing also offers comprehensive re-lubing services and same day shipping for your convenience. We have the lowest prices, discontinued sizes as well as major brands.
SPYRAFLO®
Peachtree City, GA
800-487-7601
Spyraflo's patented bearings are available in a wide range of sizes and materials. Our products include self-clinching bearings, press-fit bearings, pillow-block bearings, housing-flange bearings, flange-mount bearings and more. We use bronze, Delrin and Teflon-bronze materials so that we can better meet your specifications. Our expertise can help meet your requirements. ISO 9001:2000 certified.
Pioneer Bearing
West Orange, NJ
800-989-9126
Since 1990, Pioneer has been providing customers with exceptional service and quality ball bearing products. Miniature ball bearings, industrial bearings, aircraft bearings and angular contacts are a few examples of what we offer. Our computerized inventory system can help you find bearings in a wide variety of sizes. We welcome your prototype and production inquiries so contact us today!
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Ceramic Ball Bearings

These bearings are made from ceramic instead of the traditional and most common material, steel. Ceramic bearings are usually silicon nitrate or silicon carbide and are black in color. These bearings, though not as strong as steel, are much lighter and therefore can spin faster while using less energy than conventional bearings. Ceramic ball bearings are available in every configuration and arrangement that steel bearings are, such as angular contact bearings, thrust bearings or roller bearings. Ceramic bearings are used for many products including valve pumps, casters, motorcycles and locking mechanisms. They are also used in high performance situations, such as racing cars and hard drives. Skateboards and inline skates often use ceramic ball bearings in the wheels because they produce a fast and smooth ride while requiring the skater to put in less effort.

There are three types of ceramic ball bearings. In full ceramic bearings, the complete bearing is made of ceramic: the inner ring, the outer ring and the balls themselves. Hybrid bearings have ceramic balls that travel in steel races. The inner ring and balls of a partial ceramic bearing are made from ceramic while the outer race is steel. It is uncommon for steel balls to run in a ceramic ring but the opposite is becoming fairly common. Ceramic bearings are growing in popularity because their light weight reduces skidding and centrifugal loading, also minimizing wear to the balls and races. The outer race exerts less force inward against the ceramic ball while the bearing spins, which reduces the friction and resistance. Hybrid ceramic bearings can operate at speeds 20% to 40% higher than conventional bearings. Faster speed translates to less friction, which means that less heat is produced, allowing for a more efficient energy transfer. Ceramic bearings have a lower rate of thermal expansion and are generally more heat resistant than other materials. Because they are less dense and encounter less friction, these bearings often have a longer life than other bearings and are cheaper to produce, making them a cost efficient part. Preloading before use to reduce or eliminate any clearance between the balls and the races ensures that the bearing is performing at its highest speed and load capabilities.